National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

Fair

33°F

1°C

Humidity 61%
Wind Speed SW 7 mph
Barometer 30.16 in (1021.2 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 27 Feb 10:54 pm EST
Extended Forecast for

Watertown MA

  • Tonight

    Tonight: Partly cloudy, with a low around 25. South wind around 6 mph.

    Low: 25 °F

    Partly Cloudy

  • Saturday

    Saturday: Patchy fog between 8am and 9am. Otherwise, mostly sunny, with a high near 50. South wind 7 to 9 mph.

    High: 50 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29. Light and variable wind.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Snow likely, mainly between 9am and 1pm. Mostly cloudy, with a high near 37. North wind 3 to 8 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Snow Likely

  • Sunday Night

    Sunday Night: A slight chance of snow before 9pm. Mostly clear, with a low around 12. Northwest wind around 8 mph. Chance of precipitation is 20%.

    Low: 12 °F

    Slight Chance
    Snow then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 26. Northwest wind 5 to 7 mph.

    High: 26 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 12. Light southwest wind.

    Low: 12 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of snow between noon and 2pm, then a chance of rain after 2pm. Partly sunny, with a high near 40. South wind 5 to 10 mph. Chance of precipitation is 40%.

    High: 40 °F

    Partly Sunny
    then Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: A chance of rain before 8pm, then rain likely, possibly mixed with snow between 8pm and 9pm, then rain likely after 9pm. Cloudy, with a low around 32. South wind around 7 mph. Chance of precipitation is 70%.

    Low: 32 °F

    Rain/Snow
    Likely then
    Rain Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 25. South wind around 6 mph.
Saturday
Patchy fog between 8am and 9am. Otherwise, mostly sunny, with a high near 50. South wind 7 to 9 mph.
Saturday Night
Mostly clear, with a low around 29. Light and variable wind.
Sunday
Snow likely, mainly between 9am and 1pm. Mostly cloudy, with a high near 37. North wind 3 to 8 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Sunday Night
A slight chance of snow before 9pm. Mostly clear, with a low around 12. Northwest wind around 8 mph. Chance of precipitation is 20%.
Monday
Sunny, with a high near 26. Northwest wind 5 to 7 mph.
Monday Night
Mostly clear, with a low around 12. Light southwest wind.
Tuesday
A chance of snow between noon and 2pm, then a chance of rain after 2pm. Partly sunny, with a high near 40. South wind 5 to 10 mph. Chance of precipitation is 40%.
Tuesday Night
A chance of rain before 8pm, then rain likely, possibly mixed with snow between 8pm and 9pm, then rain likely after 9pm. Cloudy, with a low around 32. South wind around 7 mph. Chance of precipitation is 70%.
Wednesday
A chance of rain before 11am. Mostly sunny, with a high near 47. West wind 6 to 8 mph. Chance of precipitation is 40%.
Wednesday Night
Mostly cloudy, with a low around 32. Southwest wind 3 to 5 mph.
Thursday
A chance of rain. Mostly cloudy, with a high near 45. Southwest wind 5 to 8 mph becoming east in the afternoon. Chance of precipitation is 40%.
Thursday Night
Rain likely, possibly mixed with snow. Cloudy, with a low around 33. Northeast wind around 8 mph. Chance of precipitation is 60%.
Friday
Rain and snow likely. Mostly cloudy, with a high near 41. Northeast wind 8 to 10 mph. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown MA
 42.37°N 71.16°W (Elev. 46 ft)
Last Update:
2:35 pm EST Feb 27, 2026
Forecast Valid:
11pm EST Feb 27, 2026-6pm EST Mar 6, 2026
 
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Additional Resources

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Chance of Precipitation